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Ahat [919]
2 years ago
5

Simplify, (xy+yz)² - 2x²y²z² and find the value when x=-1, y=2 and z=1

Mathematics
2 answers:
inna [77]2 years ago
5 0

Answer:

a)x²y²+2xy²z+y²z²-2x²y²z²

b) -8

Step-by-step explanation:

foil the squared to get:x²y²+2xy²z+y²z²

and then plug in the numbers and chug along

hope this helps

nydimaria [60]2 years ago
4 0
<h3><u>S</u><u>i</u><u>m</u><u>p</u><u>l</u><u>i</u><u>f</u><u>y</u><u>:</u></h3>

We have

  • (xy + yz)² - 2x²y²z

<u>I</u><u>f</u><u>,</u>

  • x = -1, y = 2 and z = 1

<u>P</u><u>u</u><u>t</u><u>t</u><u>i</u><u>n</u><u>g</u><u> </u><u>v</u><u>a</u><u>l</u><u>u</u><u>e</u><u>:</u>

  • (xy + yz)² - 2x²y²z

➡ (-1×2 + 2×1)² - 2×-1²×2²×1

➡ (-2 + 2)² - 2×1×4×1

➡ (0)² - 8

➡ 0 - 8 = -8,answer

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Step-by-step explanation:

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3 years ago
What is the LCD of 4, 5, and 6
Ahat [919]
Solutions 

<span>To solve the problem our first step is to find the prime factorization of each number. </span>

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6 0
3 years ago
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Orlov [11]

ANSWER:

EXPLANATION:

. :>

5 0
3 years ago
Read 2 more answers
An investment banker deposited $50,000 in an account earning a nominal 6% per year compounded continuously. How much was in the
Orlov [11]

Answer:

The amount in the account at the end of three years will be $59,861.

Step-by-step explanation:

The formula to compute the amount at the end of <em>t</em> years, compounded continuously is:

A=P\times e^{t\times i}

Here,

A = Amount at the end

P = Principal amount

i = interest rate

t = number of years.

It is provided that:

P = $50,000

i = 6%

t = 3 years

Compute the amount in the account at the end of three years as follows:

A=P\times e^{t\times i}

   =50000\times e^{(3\times 0.06)}\\=50000\times 1.19722\\=59861

Thus, the amount in the account at the end of three years will be $59,861.

5 0
3 years ago
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